After Sunday night's show, the Coronation Street actress thanked the "gorgeous" French professional skater on Twitter, adding he was "the most talented and patient skating partner (she) could have wished for".
She also described Sylvain as an "amazing man".
Earlier host Phillip Schofield said, to laughter from the audience and the panel: "You've picked up lots of things whilst you've been here - lots of tips, lots of skills. Will you stay friends?"
Samia smiled at Sylvain and said: "I think we'll keep in touch, won't we?"
"Maybe", the coy Frenchman replied.
Samia added: "I've loved every second of it here and I'm kind of glad tonight has been our last night because we've gone out on a high."
The 30-year-old danced to Roxette's The Look during the show's Props Night.
Her prop, a hair salon chair, was a nod to her role as haidresser Maria Connor in Corrie.
After racking up 28 points, the lowest judges' score of the night, Samia also failed to win over the voting public and ended up in the bottom two with Olympic gold medal-winning boxer Luke Campbell.
She bravely performed her skate-off dance to Enrique Iglesias' Latin hit Bailamos despite suffering a groin strain during her main routine.
"I've pulled my groin. It's been coming on all week," she said.
But her performance was not enough to put her through to next week's semi-finals, as the four judges voted to save the boxer.
Head Judge Robin Cousins told Samia: "You're a feisty young lady. But Luke, it was a knock-out in the final round."
The highest score of the night, and of the series so far, went to EastEnder Matt Lapsinskas. He scored 36 points for a medley routine featuring three different hats as props.
Welsh rugby star Gareth Thomas also went through to the semi-finals after his dance to The Script's Hall of Fame, using a rugby ball as a prop, won 34.5 points and was described as "beautiful and elegant" by Robin.
Olympic gymnast Beth Tweddle, who used a hula hoop for her Lady Gaga-inspired performance, completes the line-up for the semi-finals.
Mentor Jayne Torvill praised all the contestants, saying it was the first time in the history of the show that none of the props had been dropped on Props Night.